Monday, August 19, 2013

Twilight Lengthens

It's starting to get just about completely dark each night now in Fairbanks. Astronomical twilight was reached yesterday for the first time, and starting tomorrow each night will have more than 6 hours below the civil twilight limit.

In Barrow, nautical twilight begins today, i.e. a period each night when it's dark enough to need artificial lighting for normal outdoor activities.

Here's this morning's north-northeast view from the FAA webcam at Point Hope, at the western end of the Lisburne Peninsula. The sun is rising well around to the east now.